me assume that stuf shood be
18.63x -(21.2/2.6) = (14x/2.32) -20
18.63x -8.15384615384615 = 6.03448275862069x -20
18.63x -6.03448275862069x = 8.15384615384615-20
12.59551724137931x=-11.84615384615385
x=-11.84615.../12.5955....
x=-0.94050554815912
or bout -0.94